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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 43, Iss. 8 — Mar. 10, 2004
  • pp: 1761–1772

Scattering matrix approach to the resonant states and Q values of microdisk lasing cavities

Aliaksandr I. Rahachou and Igor V. Zozoulenko  »View Author Affiliations


Applied Optics, Vol. 43, Issue 8, pp. 1761-1772 (2004)
http://dx.doi.org/10.1364/AO.43.001761


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Abstract

We develop a scattering matrix approach for the numerical calculation of resonant states and Q values of a nonideal optical disk cavity with an arbitrary shape and with an arbitrary varying refraction index. The developed method is applied to study the effect of surface roughness and inhomogeneity of the refraction index on Q values of microdisk cavities for lasing applications. We demonstrate that even small surface roughness (Δr ≲ λ/50) can lead to a drastic degradation of high-Q cavity modes by many orders of magnitude. The results of the numerical simulation are analyzed and explained in terms of wave reflection at a curved dielectric interface, combined with an examination of Poincaré surfaces of section and of Husimi distributions.

© 2004 Optical Society of America

OCIS Codes
(140.3410) Lasers and laser optics : Laser resonators
(140.4780) Lasers and laser optics : Optical resonators
(230.5750) Optical devices : Resonators
(290.4020) Scattering : Mie theory
(290.5880) Scattering : Scattering, rough surfaces

History
Original Manuscript: July 1, 2003
Revised Manuscript: October 6, 2003
Published: March 10, 2004

Citation
Aliaksandr I. Rahachou and Igor V. Zozoulenko, "Scattering matrix approach to the resonant states and Q values of microdisk lasing cavities," Appl. Opt. 43, 1761-1772 (2004)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-43-8-1761

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